Low-profile Antenna Array Based on Fabry–Perot Cavity with Mechanoelectrical Beam Steering

A research of the directional characteristics of the subarray based on Fabry–Perot cavity and antenna array with machanoelectrical beam steering is presented. The subarray based on Fabry–Perot cavity for the antenna array with mechanoelectrical is simulated. Efficiency of the subarray based on Fabry–Perot cavity is not less than 65% at frequencies from 11,9 GHz to 12,5 GHz. Gain reduction of the antenna array based on Fabry–Perot cavity is no more than 2,2 dB in the scanning angle range 0°–70°. The advantages of using antenna elements based on Fabry–Perot cavity and development on their basis mobile satellite antenna systems with wide-angle scanning are noted. Using radiator based on Fabry–Perot cavity and development on it basis antenna array with mechanoelectrical beam steering allow to achieve antenna efficiency not less than 50% and gain reduction not more than 2,2 dB in the scanning angle range 0°–70° from 11,9 GHz to 12,5 GHz.